Integrated, variable flux path electrical generator for turbine engines
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsJoseph Merrett, Serhiy Leontsev, Daniel Gillaugh, Kevin Yost, Gregory Minkiewicz, James Hendershot, Jr.
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Abstract
A power producing apparatus includes a stator portion having a stator ring disposed proximate a housing of a turbine engine. The stator potion further includes a plurality of coils. A rotor portion includes a rotor ring having a plurality of permanent magnets disposed coaxial to the plurality of coils, and the permanent magnets are oriented with alternating polarity. Individual or a plurality of coils are configured to be selectively moved axially with respect to the rotor ring.
Claims6
A power producing apparatus, the apparatus comprising:
- a rotor portion including a rotor ring mated to a plurality of rotatable fan blades of a turbine engine, the rotor ring having a plurality of permanent magnets disposed therein in an alternating polarity pattern;
- a stator portion including a first stator ring disposed coaxial with, and forward of, the rotor ring, wherein the first stator ring includes a plurality of first split coil portions;
- the stator portion further including a second stator ring disposed coaxial with, and aft of, the rotor ring, wherein the second stator ring includes a plurality of second split coil portions;
- and
- wherein one or both of the first stator ring and the second stator ring are configured to selectively rotate about a coaxial axis of rotation with respect to one another to adjust circumferential alignment between the first and second split coil portions;
- and
- wherein the adjustment of the circumferential alignment of the first and second split coil portions produces a variation in combined voltage output of the stator portion.
An apparatus comprising:
- a rotor having a rotor ring with a plurality of permanent magnets positioned thereon;
- a stator including first and second split stator rings having a plurality of paired coils disposed therewith;
- wherein the first split stator ring is positioned forward of the rotor ring and the second split stator ring is positioned aft of the rotor ring such that a plurality of coils is in axial alignment with the permanent magnets;
- and
- wherein the first and second split stator rings are rotatable about an axis of rotation relative to one another to change a circumferential alignment the paired coils.
Dependencies are inferred from the claim text.